y^2-65=0

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Solution for y^2-65=0 equation: 


Simplifying
y2 + -65 = 0

Reorder the terms:
-65 + y2 = 0

Solving
-65 + y2 = 0

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '65' to each side of the equation.
-65 + 65 + y2 = 0 + 65

Combine like terms: -65 + 65 = 0
0 + y2 = 0 + 65
y2 = 0 + 65

Combine like terms: 0 + 65 = 65
y2 = 65

Simplifying
y2 = 65

Take the square root of each side:
y = {-8.062257748, 8.062257748}

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